6 21 25 triangle

Obtuse scalene triangle.

Sides: a = 6   b = 21   c = 25

Area: T = 50.99901951359
Perimeter: p = 52
Semiperimeter: s = 26

Angle ∠ A = α = 11.20108183696° = 11°12'3″ = 0.19554911595 rad
Angle ∠ B = β = 42.83334280661° = 42°50' = 0.74875843497 rad
Angle ∠ C = γ = 125.9665753564° = 125°57'57″ = 2.19985171445 rad

Height: ha = 16.9976731712
Height: hb = 4.85662090606
Height: hc = 4.07992156109

Median: ma = 22.89110462845
Median: mb = 14.84108220797
Median: mc = 9.06991785736

Inradius: r = 1.96111613514
Circumradius: R = 15.44441456421

Vertex coordinates: A[25; 0] B[0; 0] C[4.4; 4.07992156109]
Centroid: CG[9.8; 1.3659738537]
Coordinates of the circumscribed circle: U[12.5; -9.07703712501]
Coordinates of the inscribed circle: I[5; 1.96111613514]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 168.799918163° = 168°47'57″ = 0.19554911595 rad
∠ B' = β' = 137.1676571934° = 137°10' = 0.74875843497 rad
∠ C' = γ' = 54.03442464357° = 54°2'3″ = 2.19985171445 rad

Calculate another triangle




How did we calculate this triangle?

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.


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